<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表单form标签</title>
</head>
<body>
    <form action="">
        <input type="text">
        <label for="isagree">同意</label>
        <input type="checkbox" id="isagree">
        <select name="" id="">
            <option value="1">男</option>
            <option value="2">女</option>
        </select>
        <button type="submit">注册</button>
    </form>
</body>
</html>